package com.zwg.tingshu.account.service.impl;

import cn.hutool.core.lang.Assert;
import com.zwg.tingshu.account.mapper.UserAccountDetailMapper;
import com.zwg.tingshu.account.mapper.UserAccountMapper;
import com.zwg.tingshu.account.service.RechargeInfoService;
import com.zwg.tingshu.account.service.UserAccountService;
import com.zwg.tingshu.common.constant.SystemConstant;
import com.zwg.tingshu.common.execption.GuiguException;
import com.zwg.tingshu.common.util.AuthContextHolder;
import com.zwg.tingshu.model.account.RechargeInfo;
import com.zwg.tingshu.model.account.UserAccount;
import com.zwg.tingshu.model.account.UserAccountDetail;
import com.zwg.tingshu.vo.account.AccountLockVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;

@Slf4j
@Service
@SuppressWarnings({"all"})
public class UserAccountServiceImpl extends ServiceImpl<UserAccountMapper, UserAccount> implements UserAccountService {

	@Autowired
	private UserAccountMapper userAccountMapper;
	@Autowired
	private UserAccountDetailMapper userAccountDetailMapper;
	@Autowired
	private RechargeInfoService rechargeInfoService;

	/**
	 * 分页查询当前用户充值、消费记录
	 *
	 * @param pageInfo 分页对象
	 * @param tradeType 交易类型：1201-充值 1204-消费
	 * @return
	 */
	@Override
	public void getUserAccountDetailPage(Page<UserAccountDetail> pageInfo, String tradeType) {
		//1.获取当前登录用户ID
		Long userId = AuthContextHolder.getUserId();
		//2.调用持久层获取充值记录
		pageInfo = userAccountMapper.getUserAccountDetailPage(pageInfo, userId, tradeType);
	}

	/**
	 * 用户充值，支付成功后，充值业务处理
	 *
	 * @param orderNo
	 * @return
	 */
	@Override
	@Transactional(rollbackFor = Exception.class)
	public void rechargePaySuccess(String orderNo) {
		//1.根据订单编号查询充值记录 判断状态：未支付才处理
		RechargeInfo rechargeInfo = rechargeInfoService.getRechargeInfo(orderNo);
		if (rechargeInfo != null && SystemConstant.ORDER_STATUS_PAID.equals(rechargeInfo.getRechargeStatus())) {
			return;
		}
		//2.新增余额
		int count = userAccountMapper.add(rechargeInfo.getUserId(), rechargeInfo.getRechargeAmount());
		if (count == 0) {
			throw new GuiguException(400, "充值异常");
		}
		//3.新增账户变动日志
		this.saveUserAccountDetail(
				rechargeInfo.getUserId(),
				"充值：" + rechargeInfo.getRechargeAmount(),
				SystemConstant.ACCOUNT_TRADE_TYPE_DEPOSIT,
				rechargeInfo.getRechargeAmount(),
				orderNo
		);
		//4.修改充值记录状态：已支付
		rechargeInfo.setRechargeStatus(SystemConstant.ORDER_STATUS_PAID);
		rechargeInfoService.updateById(rechargeInfo);
	}

	/**
	 * 检查及扣减账户余额；增加账户变动日志
	 *
	 * @param accountDeductVo
	 */
	@Override
	@Transactional(rollbackFor = Exception.class)
	public void checkAndDeduct(AccountLockVo accountDeductVo) {
		//1.检查及扣减余额
		int count = userAccountMapper.checkAndDeduct(accountDeductVo.getUserId(), accountDeductVo.getAmount());
		if (count == 0) {
			throw new GuiguException(400, "账户余额不足！");
		}
		//2.新增账户变动日志
		this.saveUserAccountDetail(
				accountDeductVo.getUserId(),
				accountDeductVo.getContent(),
				SystemConstant.ACCOUNT_TRADE_TYPE_MINUS,
				accountDeductVo.getAmount(),
				accountDeductVo.getOrderNo()
		);
	}

	/**
	 * 获取当前登录用户账户可用余额
	 *
	 * @param userId 用户ID
	 * @return
	 */
	@Override
	public BigDecimal getAvailableAmount(Long userId) {
		//1.根据用户ID查询账户记录
		LambdaQueryWrapper<UserAccount> queryWrapper = new LambdaQueryWrapper<>();
		queryWrapper.eq(UserAccount::getUserId, userId);
		UserAccount userAccount = userAccountMapper.selectOne(queryWrapper);
		Assert.notNull(userAccount, "账户为空！");
		//2.获取账户可用金额
		return userAccount.getAvailableAmount();
	}

	/**
	 * 初始化用户账户记录
	 *
	 * @param userId 用户ID
	 */
	@Override
	@Transactional(rollbackFor = Exception.class)
	public void saveUserAccount(Long userId) {
		//1.创建账户对象，新增账户
		UserAccount userAccount = new UserAccount();
		userAccount.setUserId(userId);
		userAccount.setTotalAmount(new BigDecimal("100"));
		userAccount.setAvailableAmount(new BigDecimal("100"));
		userAccount.setTotalIncomeAmount(new BigDecimal("100"));
		userAccountMapper.insert(userAccount);
		//2.新增账户变动历史（首次注册赠送100点）
		if (userAccount.getAvailableAmount().intValue() > 0) {
			this.saveUserAccountDetail(userId, "赠送", SystemConstant.ACCOUNT_TRADE_TYPE_DEPOSIT, userAccount.getAvailableAmount(), null);
		}
	}

	/**
	 * 新增账户变动日志
	 * @param userId 用户ID
	 * @param title 资金变动缘由
	 * @param tradeType 交易类型
	 * @param amount 变动金额
	 * @param orderNo 订单编号
	 */
	@Override
	public void saveUserAccountDetail(Long userId, String title, String tradeType, BigDecimal amount, String orderNo) {
		UserAccountDetail userAccountDetail = new UserAccountDetail();
		userAccountDetail.setUserId(userId);
		userAccountDetail.setTitle(title);
		userAccountDetail.setTradeType(tradeType);
		userAccountDetail.setAmount(amount);
		userAccountDetail.setOrderNo(orderNo);
		userAccountDetailMapper.insert(userAccountDetail);
	}
}
